Explanation
Ethernet switches are mass-produced and offered at discounts on not so widely-used chips with massive economies of scale. While in case of FPGAs,they are used as Ethernet switches and hence cost more since the expense of development and infrastructure are distributed among fewer clients.

The piece of code in the XML file is an example of a command injection attack, which is a type of attack that exploits insufficient input validation or output encoding to execute arbitrary commands on a server or system2 The attacker can inject malicious commands into an XML element that is processed by an XML handler on the server, and cause the server to execute those commands. The best solution to mitigate this type of attack is to implement a better level of user input filters and content sanitization, which means checking and validating any user input before processing it, and removing or encoding any potentially harmful characters or commands.

Explanation

Explanation
prescrcriptiveitive. now look at definition of prescriptive. The definition of prescriptive is the imposition of rules, or something that has become established because it has been going on a long time and has become customary. A handbook dictating the rules for proper behavior is an example of something that would be described as a prescriptive handbookules are being implimented.
Preventative controls describe any security measure that's designed to stop unwanted or unauthorized activity from occurring. Examples include physical controls such as fences, locks, and alarm systems; technical controls such as antivirus software, firewalls, and IPSs; and administrative controls like separation of duties, data classification, and auditing. https://www.f5.com/labs/articles/education/what-are-security-controls